/*  Copyright (C) 2008  Alexander Blyzniuchenko (BlezAlex)

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;

namespace DC
{
    public static class TaskMonitor
    {
        private static readonly Dictionary<int, Task> _taskList = new Dictionary<int, Task>();
        private static int _taskID;

        public static event EventHandler<TaskEventArgs> OnTaskStarted;


        internal static Task StartTask(string user, string fileName)
        {
            Task t = new Task();
            t.User = user;
            t.File = fileName;
            lock (_taskList)
            {
                _taskList.Add(_taskID++, t);
            }
            if (OnTaskStarted != null)
                OnTaskStarted.BeginInvoke(null, new TaskEventArgs(t), DelegateCallback, OnTaskStarted);
            return t;
        }

        private static void DelegateCallback(IAsyncResult r)
        {
            ((EventHandler<TaskEventArgs>) r.AsyncState).EndInvoke(r);
        }
    }
}
